5.5

326Motion User Guide
Unlike other behaviors, the Custom behavior doesn’t apply default parameters in the
Behaviors Inspector. Instead, a pair of pop-up menus lets you add and remove any
parameters you want to use.
Adjust this behavior using the controls in the Behaviors Inspector:
• Add Parameter: A pop-up menu used to add parameters you want to keyframe to
create custom animation. Choose a parameter from this menu to add it to the Custom
parameter list for keyframing.
• Remove Parameter: A pop-up menu listing parameters you’ve added to the current
Custom behavior. Choose a parameter from this menu to remove it from the Custom
parameter list, along with any keyframes applied to that parameter.
Add a Custom behavior in Motion
Before adding custom parameters to a Custom behavior, you must apply the Custom
behavior to an object in your project.
Add a Custom behavior to an object
1. In Motion, do one of the following:
• In the Layers list, select the object you want to add a Custom behavior to, click
Behaviors in the toolbar, choose Parameter, then choose a behavior from the
submenu.
• In the Library, select the Behaviors category, select the Parameter subcategory, then
drag the Custom icon to the object in the canvas, Layers list, or Timeline.
The Custom behavior is applied to the object. The behavior has no effect until you
add a parameter to the behavior.
2. In the Custom area of the Behaviors Inspector, click the Add Parameter pop-up menu,
then choose a parameter to add.
This menu contains every animatable parameter.